Sound-box.



UNITED 4STATES PATENT OFFICE. EDNVARD D. GI'JEASON: OF MOORES, PENNSYLVANIA, ASSIGNOR ATO VICTOR TALKING MACHINE OOMPANY, A CORPORATION OF NEW JERSEY.

soUNDoX.

No. 896,006. Specification of Letters Patent. Patented Aug. 1 1, 1908.

Application led November 14, 1907. Serial-No. 402,057. i

To all whom 'it 'may concern: grooves 13 in the linner surface of spaced lugs Be it known that I, EDWARD D. GLEAsoN, 14, which extend outwardly from the casing a citizen of the United States, and aresident upon each side of the bar, the lugs being 55 of Moores, Delaware county, and kState of either integral with the casing or formed of a Pennsylvania, have invented certain new separate piece or pieces secured to the casing. and useful Improvements in Sound-Boxes, -The bar tapers inwardly from its mounting of which the following is a full7 clear, and to a oint opposite the central portion of the complete disclosure. diap agm from whence it gradually 'in- 60 The main objects of this invention are to creases in diameter toward its opposite end,

simplify the construction` of the sound box which terminates adjacent the inner surface and to provide an improved stylus bar and of a lug projecting outwardly from the stylus bar mounting. casing, the lug 15 bein either integral with A Other'ob'ects will be set forth as the inventhe casing or formed 0I a separate piece se- 65 tion is fui't er explained. cured thereto. A screw 16 having a conical 15 In the acccornpanyinv drawings: Figure 1 point 17 is threaded through the lug 15, and is a front elevation o a sound box conengages aconical socket in'the end' of the bar structed in accordance with this invention; to hld the bar uponits mounting. The Fig. 2 a'longitudinal section on line 2 2 of reduced central `portion of the bar is phonet- 70 Fig. 1 Fig. 3 a front elevation of a modied ically connected to the diaphragm by means 20 form of this invention; Fig. 4, a longitudinal of a rod 18.

section on line 4 4 of Fi 3; Fig. 5 a front With this construction in mind, it is evi elevation of a second mo ication of this in- -dent that when the stylus needle is put into vention; Fig. 6 a longitudinal section on line voperative en agement with the sound record 75 6**6 of Figx; Fig, 7 a front elevation of a that the sty us bar will be flexed at its centhird modification of this invention; Fig. 8 tral weakenedportion to permit the har to a longitudinal section on line 8-8 'of Fig. 75 oscillate 'between the knife edge bearing Fig. 9 a front elevation of a fourth modiicaupon one side ofthe box, and the conical tion of this. invention; and Fig. 10 is a longiscrew on the op osite side of the box7 thus 80 tudinal central section of Fig. 9. causing the diap ragm to vibrate in accord- Referring to the drawings,particularly to 'ance withthe sound record. -It is also ob- Figs, 1 and 2, the device comprises acasing 1 vious that thisform ot sound box may be having a cylindrical bore 2 provided near the used for recording as well as for reproducing front edge of'thc casing with a V shaped sounds. By this constructionJ a pressure 85v groove 3. The diaphragm 4 is held between ma be put upon the stylus bar longituditwo rubber gaskets 5 and 6, the outer one of nal y `to tension it, to prevent its too free which rests Within the said groove 3, and the vibration and'to keep it in engagement with vinner one of which is of smaller diameter `they sound record. Furthermore' the .par` than the outer one and rests inthe angle beticular vform of casing used in this box is` in 90 'l tween the bore ofthe box and the rear wall a single piece, which may be cheaply con- 40 thereof. structed and which ermite of the easy in# The stylus bar 7 extends diametrically sertion or removal o the diaphragm and its across the i'iontof the box, one end Vof the bar supporting gaskets. S projecting-'outside of the periphery of the In Figs. 3 and 4 I have shown the Iirst 95 casing, andbeing provided with Vrthe usual modification of this invention. This form v socket 9 for holding the stylus needle 10, the is like the preceding, except that the stylus needle being held in place by the screw 11. bar 19 is pivoted between screws 2O having' y The stylus bar is supported upon knife edges conical hubs iitting in corresponding sockets 12 rojecting upon opposite sides of the bar in the sides of the bar, the screws 20'being 100 an integral therewith, and extending in a threaded into lugs 2,1 similar to those already direction parallel to theV diaphragm and erdescribed. Upon the opposite side of the endiclilnr/the'longitudinal axis ofthe ar. casinzg the`bar terminates in a cylindrical besef" yedges rest within V shaped end which passes through a 'correspond-- its end at 2G iust Within the sound box casf bar being pivoted between the lugs 49'upon.` the screws J5() adjacent its -stylus bar,

movement of the diaphragm; 4and 1n reproducing or in recordlng sounds, the diaphragm ing aperture in the 'lug 23 rigid with the sound box casino 24, as heretofore described this end of the bar being held in fixed position by means of the screw 25, which is threaded through the outer side of the said lug. Furthermore, instead of being Weakened centrally, the bar is weakened adjacent ing, and fronithis point an arm or branch 27 of thc bar extends inwardly in a radial direction, terminating in an end 2S curved to moet the central portion ofthe diaphragm 29, to which it is phonetic'ally connected. By this construction, the action of the stylus is similar to the combination of two levers, in which the power is applied to the short arm of one-lever, and is transmitted from the long arm of the lever to act upon the`-short arui of the second lever to produce an increased amount ofmotion at the terminus of the ion'g arm of the second lever. Thus any movement of the stylus needle 30, which secured as usual to the .free end of the would result in an amplified would have a muchgreater leverage upon the stylus needle than lhas heretofore been provided in sound boxes of this character.

inthe second modification of this invention, which is shown in Figs.v 5 and 6, the casing S1 provided with a cylindrical bore 32 having three'V shaped grooves :33, 34 and 3 5 respectively, the inner of which 34 and 35 are provided for the reception ofthe gaskets 36 and 37 to hold the diaphragm 38 in position, and theI outer groove 33, Which is adacent the front edge of the casing,1 is provirfed to forni a seat for the knife edge 39 lwhich supports the stylus bar 4U, the knife edge 39 being upon a pro'ection 41 integral with and in alinement with the central portion of the` bar, which extends .diametrically across the front of the box and is secured at its end opposite the knife edge in a recess 42 in the sound b'ox casing by means of a screw 43,v which is threaded into a lug 44 upon the casing. The central portion of the bar is Weakened by lateral recesses athl point opposite the center of the diaphragm and is phonetically connected to 'the diaphragm by means of a rod 45. The portion of the bar adjacent theknife edge is offset and pro'eets beyond the periphery of tliecasing, an is provided with the usual socket carrying astylus needle 46. The operation. of this box is similar to those already describeda i v ln the fourth modification of this invention, which. is shown`in Figs. 7 and 8, the stylus bar 47 is substantially rectangular'in ia e and oblong Wea 'cned centrally by means of a transverse'A rectangular groove 48 in the front thereof, the

in cross section, land is "ino unting free end which caywires ect to said casin y ries the stylus point 51, and bein fixed at its opposite end 52 to the front oft e casing by means of a screw 53 extending into a. lug 54 which is secured to the casingby means of the screw 55. The operation of this box is similar' to that of those already described.

In the fifth modification of this invention,- which is shown in Figs. 9 and 10, the stylus 56 is mounted upon the knife edges in the m anner already described and shown in Figs. 1 and 2. The inner end of the bar-terminates in a reduced threaded end 57 carrying a knurled nut 58 and a hollow cap 59 resting loosely over the threaded end roj ecting through the nut, the inner end of t e cap engaging against the outer surface of the knurled nut. The upper end of the cap is provided with a slot 60 through Which passes a tie-rod 61, the ends of the tie-rod being secured upon the opposite sides of the lstylusrbar to the casing by means of the ins 62, the ends of the. tie-rod beingthreade obliquely with res ect to the stylus bar. The portion ofthe sty us bar opposite the center of the diaphragmcis phonetically connected to the diaphragm by means of the rod 63. vBy this construction the stylus bar is held upon its mountin by means of the tie-rod 61, and more or ess ressure may be ,a plied longitudinally of tiie rod by means o the knurled nut to hlold the bar u onits mounting. After the bar has been a justed upon its mounting, its operation is similar to that already described. Y

Although I have shown only a few of the forms in which this invention maybe constructed, I do not .limit m self to any particular form, `as other modi cations might be made in the embodi-rrfent of this inventionl and in the details of its construction within the scope of the ,appended claims, Without departing from the spirit of this invention or sacrificing any of the advantages thereof.

Having thus fully described my invention, what I claim and desire to protect by Letters Patent of the United States is:

1. In a soundiblox, the combination with a casing, of a stylus bar, a mountingfor said bar facing inwardl of said casing, and means acting longitu same 4upon its mounting. Y

2. Ina sound box; the combination with a casing of a diaphragm, a stylus bar, means for pho'netically connecting said bar intermediate of its ends to said diaphra .a ing for said bar adjacent one en thereof, and means secured to said casing and en .aging rigidly against the opposite' end of sa'id ar to restrain said bar upon its mounting.

3. in a sound box, the casing of a diaphragm, a stylus bar, means for phonetica 'connecting' said bar intermediate of its en to said diaphragm, a for said bar facing inwardly with and-means acting upon 130 inally of said bar to hold the mOuIlV 12e.

the combination with said bar at one end thereof to hold said bar upon its mounting, said bar being weakened at a oint intermediate of its ends.

4, n a sound box, the combination with a casing, of a diaphragm, a stylus bar, means for phonetically connecting said bar intermediate of its ends to said diaphragm, a knife' edge upon which said bar is mounted adjacent one end preventing said end from moving longitudinally outwardly, andmeans at the opposite end of said bar to 'restrain the movement of said bar upon its mounting 5. In a sound bx, the combination with a casing, of a diaphragm, a stylus bar, means for phonetically connecting said bar intermediate of its ends to said diaphragm, a knife edcgie upon which said bar is mounted at one en preventing said end from moving longitudinally outwardly, and means at the opposite end, and held 1n position by said casing, to restrain 'the movement of said bar upon its'mounting.

6. In a sound box, the combination with a casing, of a diaphragm, a stylus bar, means phonetically connecting .said bar intermediate o f its ends to said diaphragm, a knife edge lu on which saidr bar is mounted, and a pin t readed into said oasin and engaging the end of said. bar to hol said bar upon'its mounting.

. 7. In a sound box, the combination with a casing, of a stylus bar pivoted adjacent one vend to one side of said casing and terminatin at its opposite end adjacent the opposite si e of said. casing, `and means passing through said casing and engaging the end 'of said bar to restrain the same upon its mountmg Y i y I 8..' In a sound box, the combination. with a 40 (casing, of la flexible stylus bar pivoted to one isidev off said casing and terminating adjacent 'the op osite side thereof, and means secured to lsal opposite side and engaging rigidly ainst .said bar to restrain the movement t ereof.

9. In a sound box, the combination with a casing, of a diaphragm, a flexible stylus bar pivoted to one side of said casing and termiatingadjacent the opposite side thereon.

5o'means secured to said opposite side and rigidly e agin said bar to restrain the movementt ereo and means phonetically connectin said bar and said diaphragm.

10. n a sound box, the combination with a casing; of a diaphragm, a stylus bar pivoted to one' side of said casing and terminating adjacent the opposite side thereof, means secured to said opposite side and rigidly engaging said bar to restrain the movement thereof, said bar having a weakened portion, and means phonetically connecting the weakened portion of said banto said diaphragm.

v11. In 'a sound box, the combination with a. casing, of a-st lus bar, aninwardly facing bearing for said ar upon one side of said casing, and means secured to said casing and rigidly acting upon the bar adjacent the other side of said casing to press the bar upon its bearing.

12f. In a sound box, the combination with a casing, of a stylus bar, an. inwardly facing bearing for said bar upon one side of said casf ing, said bar extending inwardiy and outwardly from said bearing and means secured to said casing and rigidly acting upon the inner end of said bar 'to press said bar upon said bearing.

13. In a sound box the combination with a casing, of a 'styls bar mounted to oscillate said casing, and means secured to saidcasing yand rigidly engaging said bar at a point spaced from said axis, and acting 1n a directlon toward the axis, to restrainthe moVe-' ment of said bar.

15. In a. sound box the combination with a casing, oi' a diaphragm, a stylus bar mounted to oscillate upon an axis fixed with respect to said casing, means secured to said casing and `rigidly engaging said barA at a point spaced from said axis to restrain the movement of said bar, and' means phoneticaliy connecting said bar to said diaphragm between said axis and acting toward the axis 'and said point.k

16. In4 a sound box the combination with a casing, of a dia hragm, a iexiile stylus bai' mounted to oscil ate upon an axis fixed with respect to said casing, means secured to said casing and rigidly engaging said bar at a point spaced from vsaid axis and acting toward the axis to restrain the movement of said bar, and means phonetically connecting said bar to saiddiaphragm between said axis and said point.

17, In a sound box the combination with.

a casing, of a stylus bar, a mounting therefor, land means independent of said mounting secured. to said casing and rigidly engagingsaid bar and acting toward said mounting to'hold bar uponits mounting. 18. In a sound box the combination with acasmg, of a stylus bar, a mounting therefor,

vand means independent of said mounting secured to said casing and rigidly engaging said 'bar and actin Vtoward said mounting to r'estrain the osci lation of said bar.

19. In a sound' boxv the combination with a casing, of a iexible stylus bar, a mounting.

therefor,v and means independent of said mounting secured to said casingland rigidly engaging said bar and acting toward said -In witness whereof I hereunto set my hand this 13th day of November A. D., 1907.

EDWARD D. GLEASON.

mounting to restrain the oscillation o f said L bar. Y 20. In a sound box the combination Wlth a. casing, Yof a stylus barfa mountmg for said 5 bar facing inwardl} T of said casing, and means tending to force said bar outwardly from s ad casing to hold said bar upon lts mountmg.

Witnesses:

A. I. GARDNER,- ALEXANDER PARK.

Itis hereby certified that in Letters Patent No. 896,0fgrantedlAugst 11, 1908, lupon the application of Edward D."r1eason, of Moores, Pennsylvania., for an mprovement in Sound-Boxesj an error appears inthe printed Aspecification'requiring c'orreeton, `as follows: In line 102, page 3, the words and acting toward 'the axis should `beV stricken out, and inserted after 'the word axis in line 99, saine page; and that the said Lettere Patent'ehoilld be read with this correction therein the* *he same may *I l conform to the record of the ease 4in the Patent Oice.

signed and sealed this 20m day f ogsobenn. 190s.

[surf] i i' o. o. BILLINGS,

' wing Gommwbnef of Patenti..

-In witness whereof I hereunto set my hand this 13th day of November A. D., 1907.

EDWARD D. GLEASON.

mounting to restrain the oscillation o f said L bar. Y 20. In a sound box the combination Wlth a. casing, Yof a stylus barfa mountmg for said 5 bar facing inwardl} T of said casing, and means tending to force said bar outwardly from s ad casing to hold said bar upon lts mountmg.

Witnesses:

A. I. GARDNER,- ALEXANDER PARK.

Itis hereby certified that in Letters Patent No. 896,0fgrantedlAugst 11, 1908, lupon the application of Edward D."r1eason, of Moores, Pennsylvania., for an mprovement in Sound-Boxesj an error appears inthe printed Aspecification'requiring c'orreeton, `as follows: In line 102, page 3, the words and acting toward 'the axis should `beV stricken out, and inserted after 'the word axis in line 99, saine page; and that the said Lettere Patent'ehoilld be read with this correction therein the* *he same may *I l conform to the record of the ease 4in the Patent Oice.

signed and sealed this 20m day f ogsobenn. 190s.

[surf] i i' o. o. BILLINGS,

' wing Gommwbnef of Patenti..

Correction in Letters Patent Nol 896,006.

It is hereby certified that in Letters Patent No. 896,006, grauted-August 1l, 1908,

upon the application of Edward D. Gleason, of Moores, Pennsylvania, for an improvement; in Sound-Boxes, an error appears in the printed specification requiring correction, as follows: In line 102, page 3, the words and acting toward the axis should be stricken out, and inserted after the word axis in line 99, same page; and that the said Letters Patent should be read with this correction therein Hm* *lm seme may conform to the record of the case in the Patent Olce.

Signed end sealed this 20th day of Oelsober, A. D., 1908.

o. C. BILLINGS, qcting Commissioner of Patents.

[SEAL] 

